1
AIEEE 2007
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
In gamma ray emission from a nucleus
A
only the proton number changes
B
both the neutron number and the proton number change
C
there is no change in the proton number and the neutron number
D
only the neutron number changes
2
AIEEE 2007
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
The half-life period of a ratio-active element $$X$$ is same as the mean life time of another ratio-active element $$Y.$$ Initially they have the same number of atoms. Then
A
$$X$$ and $$Y$$ decay at same rate always
B
$$X$$ will decay faster than $$Y$$
C
$$Y$$ will decay faster than $$X$$
D
$$X$$ and $$Y$$ have same decay rate initially
3
AIEEE 2007
MCQ (Single Correct Answer)
+4
-1
Which of the following transitions in hydrogen atoms emit photons of highest frequency ?
A
$$n = 1$$ to $$n=2$$
B
$$n = 2$$ to $$n=6$$
C
$$n = 6$$ to $$n=2$$
D
$$n = 2$$ to $$n=1$$
4
AIEEE 2006
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
The energy spectrum of $$\beta $$-particles [ number $$N(E)$$ as a function of $$\beta $$-energy $$E$$ ] emitted from a radioactive source is
A
AIEEE 2006 Physics - Atoms and Nuclei Question 230 English Option 1
B
AIEEE 2006 Physics - Atoms and Nuclei Question 230 English Option 2
C
AIEEE 2006 Physics - Atoms and Nuclei Question 230 English Option 3
D
AIEEE 2006 Physics - Atoms and Nuclei Question 230 English Option 4
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